A woven bag

Abstract

The utility model relates to packing bag technical field, concretely is a kind of woven bag, including bag body, buffer film, check valve;The bottom of bag body is provided with bottom seal, top is enclosed to form bag mouth, the both sides of bag body are provided with folding type structure;The folding type structure is uniformly provided with inclined seal strip near bottom seal, the bag body is connected after being enclosed along the outer folding line of folding type structure, forms side seal;The buffer film is set in the pocket formed by the bag body and is close to the side of side seal;The check valve is set on the bag body. It is fundamentally enhanced that the impact resistance, the anti-falling and the puncture resistance of bag body are enhanced by high toughness material and optimization structure design, can effectively bear the harsh conditions in carrying, stacking and long-distance transportation, greatly reduces the broken bag rate, ensures the safety and integrity of the product inside.

Description

Technical Field

[0001] This utility model relates to the field of packaging bag technology, specifically a woven bag. Background Technology

[0002] In the field of flexible and heavy packaging, the commonly used paper-plastic composite bags have several technical shortcomings and can no longer meet the needs of modern chemical and plastic industries: 1. Poor impact resistance: The bags are easily damaged during drops, stacking, or transportation, leading to leakage and waste of the contents and insufficient product protection reliability; 2. High environmental pressure: Due to the use of composite materials, they are difficult to separate and recycle, resulting in a large amount of waste packaging causing environmental pollution; 3. Insufficient moisture barrier: For high-end, moisture-absorbing products such as nylon, an additional aluminum foil inner bag must be added and manual bagging is required to form a "double-layer bag" structure. This process not only increases material costs but also leads to high labor costs and low packaging efficiency, seriously hindering the realization of automated production lines. Utility Model Content

[0003] In view of the deficiencies of the prior art, this utility model provides a woven bag that, by adopting high-toughness materials and optimized structural design, fundamentally enhances the bag's impact resistance, drop resistance, and puncture resistance, effectively withstanding the harsh conditions of handling, stacking, and long-distance transportation, significantly reducing the bag breakage rate, and ensuring the safety and integrity of the contents.

[0004] To achieve the above objectives, the present invention provides a woven bag comprising a bag body, a cushioning film, and a one-way valve; the bottom of the bag body is provided with a bottom seal, and the top is closed to form a bag opening; both sides of the bag body are provided with folded structures; each folded structure is provided with a diagonal sealing strip near the bottom seal; after the bag body is closed, it is connected along the outer fold line of the folded structure to form a side seal; the cushioning film is disposed inside the pocket formed by the closed bag body, and is located on the side of the side seal; the one-way valve is disposed on the bag body.

[0005] Furthermore, the bag body is provided with large sides and small sides, the two large sides are parallel and congruent to each other, the two small sides are parallel and congruent to each other, and the small sides are provided with the folding structure.

[0006] Furthermore, one side of the buffer film is pressed and sealed with the larger side to form a first side seal, and the other side is pressed and sealed with the smaller side to form a second side seal.

[0007] Furthermore, the one-way valve is disposed on the large side surface.

[0008] Furthermore, the oblique sealing strip is heat-sealed using a K-type mold heat sealing knife.

[0009] Furthermore, the length of the large side is 82cm and the width is 42cm.

[0010] Furthermore, the length of the small side is 82cm and the width is 5cm.

[0011] Furthermore, a circular sealing point is provided between the oblique sealing strip and the bottom seal.

[0012] The beneficial effects of this utility model are as follows: It significantly improves the physical protective performance of the packaging. By adopting high-toughness materials and optimized structural design, the bag's impact resistance, drop resistance, and puncture resistance are fundamentally enhanced, effectively withstanding the harsh conditions of handling, stacking, and long-distance transportation, greatly reducing the bag breakage rate and ensuring the safety and integrity of the packaged products. It achieves excellent moisture-proof and barrier functions. The innovative multi-layer composite structure provides excellent water vapor and oxygen barrier performance, meeting the stringent storage requirements of high-end, easily hygroscopic products such as nylon in one step, thus completely eliminating redundant aluminum foil inner bags and manual bagging. It aligns with the trend of green and environmentally friendly development. By using a single recyclable material or an easily separable and recyclable composite structure, the entire packaging bag can be recycled, solving the environmental pollution problem of traditional paper-plastic composite bags at the source. It greatly promotes packaging automation. The combination of integrated bag design and high barrier performance simplifies the packaging process, allowing it to be directly integrated into automated packaging lines for high-speed filling and sealing, thereby significantly improving packaging efficiency and reducing labor costs and labor intensity. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 Enlarged view of a portion at point A; Figure 3 This is a schematic diagram of the planar unfolded structure of this utility model; Figure 4 This is a front view of the present invention; Figure 5 This is a rear view of the present invention; In the image: 100, bag body; 110, bottom seal; 120, bag opening; 130, diagonal seal; 140, side seal; 150, large side; 160, small side; 170, round sealing point. 200. Buffer membrane; 210. First side seal; 220. Second side seal. 300. Check valve. Detailed Implementation

[0014] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0015] like Figure 1-5 As shown, a woven bag according to an embodiment of this utility model includes a bag body 100, a cushioning film 200, and a one-way valve 300. The bottom of the bag body 100 is provided with a bottom seal 110, and the top is closed to form a bag opening 120. Both sides of the bag body 100 are provided with folded structures. The folded structures are provided with diagonal sealing strips 130 near the bottom seal 110. After the bag body 100 is closed, it is connected along the outer fold line of the folded structure to form a side seal 140. The cushioning film 200 is placed inside the bag formed by the closed bag body 100 and is placed near the side seal 140. The one-way valve 300 is placed on the bag body 100 and is 76cm away from the bottom seal. After packaging, the one-way valve 300 on the bag body 100 can automatically discharge the air in the bag, which is 4 times faster than normal air discharge.

[0016] It should be noted that the bag body 100 is made of PET / AL / PE woven fabric / PA / PE. Its advantages include high barrier properties, moisture resistance, water resistance, and weather resistance. The cushioning film 200 is made of PE / PA / PE. Its advantages include an asymmetrical structure, heat-sealing performance on both sides, tensile strength, and ultra-high tear and impact resistance. The outermost layer of the bag body 100 is a polyester layer, and the outside of the polyester layer is coated with anti-slip oil to increase friction. After the object is placed into the aluminum foil woven fabric bag body through the bag opening 120, it is sealed. When the whole plate is stacked, it can prevent the packaged items from slipping.

[0017] In one embodiment, the bag body 100 is provided with large side 150 and small side 160. The two large side 150 are parallel and congruent to each other, and the two small side 160 are parallel and congruent to each other. The small side 160 is provided with a folding structure.

[0018] In one embodiment, one side of the buffer film 200 is pressed and sealed with the large side surface 150 to form a first side seal 210, and the other side is pressed and sealed with the small side surface 160 to form a second side seal 220.

[0019] It should be noted that the small side 160 is located between the two large side 150s and is referred to as the small side 160. In one embodiment, a one-way valve 300 is disposed on the large side 150.

[0020] In one embodiment, the oblique sealing strip 130 is heat-sealed using a K-type mold heat sealing knife.

[0021] In one embodiment, the length of the large side 150 is 82cm and the width is 42cm.

[0022] In one embodiment, the length of the small side 160 is 82cm and the width is 5cm.

[0023] In one embodiment, a circular sealing point 170 is provided between the oblique sealing strip 130 and the bottom seal 110. The circular sealing point 170 is used to reduce any air that may be present in the space enclosed by the oblique sealing strip 130, the bottom seal 110, and the side edges during the production process, preventing the woven bag from being poorly sealed or expanding, which could damage the woven bag, while also increasing the bottom strength. The area of ​​the circular sealing point 170 is determined according to design requirements and the size of the triangular area enclosed by the oblique sealing strip 130, the bottom seal 110, and the side edges.

[0024] It should be noted that after the woven bag is filled with materials, the cushioning film 200 prevents the materials from coming into contact with the side seal 140; when the woven bag containing materials falls from a height, the materials break through the cushioning film 200 first, without damaging the side seal 140, thereby improving the drop resistance of the woven bag.

[0025] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0029] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

Claims

1. A woven bag, characterized in that: The bag includes a body with a bottom seal and a top opening. Both sides of the bag body have folded structures. Each folded structure has a diagonal sealing strip near the bottom seal. The bag body is closed and connected along the outer fold line of the folded structure to form a side seal. A cushioning film is placed inside the pocket formed by the closed bag body, near the side seal. The bag also includes a one-way valve on the bag body.

2. A woven bag according to claim 1, characterized in that: The bag body has large sides and small sides. The two large sides are parallel and congruent to each other, and the two small sides are parallel and congruent to each other. The small sides are provided with the folding structure.

3. A woven bag according to claim 2, characterized in that: The buffer film is pressed and sealed on one side with the large side to form a first side seal, and on the other side with the small side to form a second side seal.

4. A woven bag according to claim 2, characterized in that: The one-way valve is located on the large side.

5. A woven bag according to claim 1, characterized in that: The oblique sealing strip is heat-sealed using a K-type mold heat sealing knife.

6. A woven bag according to claim 2, characterized in that: The length of the large side is 82cm and the width is 42cm.

7. A woven bag according to claim 2, characterized in that: The length of the small side is 82cm and the width is 5cm.

8. A woven bag according to claim 1, characterized in that: A circular sealing point is provided between the oblique sealing strip and the bottom seal.

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